131093 has 4 divisors (see below), whose sum is σ = 131820. Its totient is φ = 130368.

The previous prime is 131071. The next prime is 131101. The reversal of 131093 is 390131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 390131 = 7 ⋅55733.

It can be written as a sum of positive squares in 2 ways, for example, as 33124 + 97969 = 182^2 + 313^2 .

It is a cyclic number.

It is not a de Polignac number, because 131093 - 2¹⁰ = 130069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143 + ... + 531.

It is an arithmetic number, because the mean of its divisors is an integer number (32955).

2¹³¹⁰⁹³ is an apocalyptic number.

It is an amenable number.

131093 is a deficient number, since it is larger than the sum of its proper divisors (727).

131093 is an equidigital number, since it uses as much as digits as its factorization.

131093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 131093 is about 362.0676732325. The cubic root of 131093 is about 50.7995463617.

The spelling of 131093 in words is "one hundred thirty-one thousand, ninety-three".